KÖNIGE VON PAIONIEN. LYKKEIOS (356-335). Tetradrachm. Laurate head of Apollo to left. Rev: ΛYKK-EIOY. Herakles wrestling with nemaean lion to left; bow and club below. SNG Cop - (cf. 1382, Apollo right); SNG ANS - (cf. 1020- 1021, same); AMNG III/2 199.3. 12,80g. Rare. Extremely fine.
The master of this mint thought of something smart that would help the coin dies last longer and potentially produce a larger number of coins. He drilled a shallow round hole in the obverse die (cheek of Apollo), so that the stress of the striking would be focused there as a stopdrill against die breaks.